EP 3895821 B1 20230315 - DETECTION OF FAULTY COOLING UNITS CONFIGURED TO PROVIDE COOLANT TO ROLLING MILLS
Title (en)
DETECTION OF FAULTY COOLING UNITS CONFIGURED TO PROVIDE COOLANT TO ROLLING MILLS
Title (de)
ERKENNUNG FEHLERHAFTER KÜHLEINHEITEN MIT KONFIGURATION ZUR VERSORGUNG VON WALZWERKEN MIT KÜHLMITTEL
Title (fr)
DÉTECTION D'UNITÉS DE REFROIDISSEMENT DÉFECTUEUSES CONFIGURÉES POUR FOURNIR DU LIQUIDE DE REFROIDISSEMENT AUX LAMINOIRS
Publication
Application
Priority
EP 20169497 A 20200414
Abstract (en)
[origin: EP3895821A1] The present invention is related to a method for detecting a faulty cooling unit in a set of cooling units (106a) configured to provide a coolant to work rolls (100a) arranged to process a work item (102) therebetween, the method comprising: varying the flow rates of the coolant ejected from a sub-set of the cooling units; in response to varying the flow rates, determining a flatness variation value of the work item for at least each of the cooling units in the sub-set of cooling units, the flatness variation value being indicative of the work item flatness variation downstream of the work rolls; and detecting a faulty cooling unit based on comparing the flatness variation values to a reference flatness variation value.
IPC 8 full level
B21B 38/00 (2006.01)
CPC (source: EP KR US)
B21B 37/32 (2013.01 - KR); B21B 37/74 (2013.01 - US); B21B 38/00 (2013.01 - EP); B21B 38/02 (2013.01 - KR US); G01B 21/20 (2013.01 - US); B21B 37/32 (2013.01 - EP); B21B 38/02 (2013.01 - EP); B21B 2027/103 (2013.01 - EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3895821 A1 20211020; EP 3895821 B1 20230315; CN 115397576 A 20221125; JP 2023520577 A 20230517; JP 7487335 B2 20240520; KR 20220155605 A 20221123; US 11712724 B2 20230801; US 2023149996 A1 20230518; WO 2021209198 A1 20211021
DOCDB simple family (application)
EP 20169497 A 20200414; CN 202180026851 A 20210308; EP 2021055786 W 20210308; JP 2022560889 A 20210308; KR 20227038034 A 20210308; US 202117995808 A 20210308